Pyle Armor Shield Trailer Guard Waterproof Pontoon Boat Cover, Marine Grade 300 Denier Polyester Cover, Ultimate Durability, and All Weather Protection, Full Size fits 17-20-Feet x 96-Inch (PCVHP440) BEST FABRIC!! TOUGH POLYESTER HURRICANE FABRIC the Pyle Armor Shield waterproof boat covers are designed for durability and all-weather protection and are resistant to mildew and UV damage with Double stitched interlock seams with "rot-proof" thread BEST PROTECTION!! ALL-WEATHER PROTECTION PONTOON COVER 300 denier tough polyester fabric with PU undercoating protects your pontoon from all elements including rain and snow and keeps your pontoon free of dirt UNIVERSAL FIT!! FITS MOST POPULAR PONTOON BOATS with three sizes 17-20 feet, 21-24 feet and 25  28 feet with beam width of 96 inches, with Adjustable transom flap and an elastic cord is sewn into the bottom hem, providing a tight, custom fit EASY USAGE!! INTEGRATED STRAP AND ROPE ATTACHMENTS Rope attaches to rugged non-scratch D-rings, no grommets to pull out or scratch and will not scratch your boat while providing a custom fit FREE STORAGE BAG provided with extra room for easy storage Fits most popular pontoon boats with three sizes - Resistant to mildew and UV damage Tough polyester Hurricane fabric designed for durability and weather protection - 2 Year Warranty Rope attaches to rugged non-scratch D-rings, no grommets to pull out or scratch Adjustable transom flap and an elastic cord sewn into the bottom hem provides a tight, custom fit Integrated strap and rope attachments